CVE-2026-64079 netfilter: x_tables: allocate hook ops while under mutex

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: allocate hook ops while under mutex arp/ip6tregistertable add the table to the per-netns list via xtregistertable before allocating the per-netns hook ops copy via kmemduparray. This leaves a window where the...

CVE-2026-64079

The CVE-2026-64079 issue affects the Linux kernel netfilter x_tables path. During arp/ipt registration, the per-netns table is added to the list before allocating per-netns hook ops, leaving a window where the table appears with ops=NULL. If a concurrent pernet exit occurs, nf_unregister_net_hook...

CVE-2026-64079 netfilter: x_tables: allocate hook ops while under mutex

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: allocate hook ops while under mutex arp/ip6tregistertable add the table to the per-netns list via xtregistertable before allocating the per-netns hook ops copy via kmemduparray. This leaves a window where the...

CVE-2026-64078 netfilter: x_tables: add and use xtables_unregister_table_exit

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: add and use xtablesunregistertableexit Previous change added xtablesunregistertablepreexit to detach the table from the packetpath and to unlink it from the active table list. In case of rmmod, userspace that ...

EUVD-2026-45651

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: add and use xtablesunregistertableexit Previous change added xtablesunregistertablepreexit to detach the table from the packetpath and to unlink it from the active table list. In case of rmmod, userspace that ...

CVE-2026-64078

The CVE-2026-64078 entry concerns a Linux kernel netfilter/x_tables issue that was resolved by introducing and using xtables_unregister_table_exit (replacing xt_unregister_table()) and adding a second-stage helper to unlink the dying table from the list, free hook ops, and emit an audit notificat...

CVE-2026-63858

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: add hook transactions for device deletions Restore the flag that indicates that the hook is going away, ie. NFTHOOKREMOVE, but add a new transaction object to track deletion of hooks without altering the...

CVE-2026-63858

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: add hook transactions for device deletions Restore the flag that indicates that the hook is going away, ie. NFTHOOKREMOVE, but add a new transaction object to track deletion of hooks without altering the...

EUVD-2026-45542

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: add hook transactions for device deletions Restore the flag that indicates that the hook is going away, ie. NFTHOOKREMOVE, but add a new transaction object to track deletion of hooks without altering the...

CVE-2026-63858

The CVE concerns the Linux kernel netfilter nf_tables subsystem. A patch resolves a vulnerability related to hook transactions for device deletions: it reintroduces NFT_HOOK_REMOVE and adds a new transaction object to track hook deletions without altering the basechain/flowtable hook_list during ...

CVE-2026-63858 netfilter: nf_tables: add hook transactions for device deletions

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: add hook transactions for device deletions Restore the flag that indicates that the hook is going away, ie. NFTHOOKREMOVE, but add a new transaction object to track deletion of hooks without altering the...

CVE-2026-63858 netfilter: nf_tables: add hook transactions for device deletions

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: add hook transactions for device deletions Restore the flag that indicates that the hook is going away, ie. NFTHOOKREMOVE, but add a new transaction object to track deletion of hooks without altering the...

CVE-2026-63803

In the Linux kernel, the following vulnerability has been resolved: hdlcppp: sync per-proto timers before freeing hdlc state Each PPP control protocol LCP/IPCP/IPV6CP embedded in struct ppp registers a timer via timersetup. That struct ppp is the hdlc-state allocation, which detachhdlcprotocol...

CVE-2026-53373

In the Linux kernel, the following vulnerability has been resolved: mm/vma: do not try to unmap a VMA if mmapprepare invoked from mmap The mmapprepare hook functionality includes the ability to invoke mmapprepare from the mmap hook of existing 'stacked' drivers, that is ones which are capable of...

CVE-2026-53373

In the Linux kernel, the following vulnerability has been resolved: mm/vma: do not try to unmap a VMA if mmapprepare invoked from mmap The mmapprepare hook functionality includes the ability to invoke mmapprepare from the mmap hook of existing 'stacked' drivers, that is ones which are capable of...

EUVD-2026-45446

In the Linux kernel, the following vulnerability has been resolved: mm/vma: do not try to unmap a VMA if mmapprepare invoked from mmap The mmapprepare hook functionality includes the ability to invoke mmapprepare from the mmap hook of existing 'stacked' drivers, that is ones which are capable of...

CVE-2026-53373

In the Linux kernel, the following vulnerability has been resolved: mm/vma: do not try to unmap a VMA if mmapprepare invoked from mmap The mmapprepare hook functionality includes the ability to invoke mmapprepare from the mmap hook of existing 'stacked' drivers, that is ones which are capable of...

PT-2026-61182

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description Certain sleepable LSM Linux Security Module programs cannot be used with the bpf lsm task to inode function because it is called under rcu read lock, and the bpf lsm inet conn establishe...

Linux Distros Unpatched Vulnerability : CVE-2026-63858

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: nftables: add hook transactions for device deletions Restore the flag that indicates that the hook is going away, ie. NFTHOOKREMOVE, but add a new...

PT-2026-61175

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the netfilter nf tables component where the process of moving hooks from the basechain or flowtable hook list to the transaction hook list during device deletions disrup...